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Diffstat (limited to 'src/Runtime/Source/system/Qt3DSMemory.cpp')
| -rw-r--r-- | src/Runtime/Source/system/Qt3DSMemory.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/Runtime/Source/system/Qt3DSMemory.cpp b/src/Runtime/Source/system/Qt3DSMemory.cpp new file mode 100644 index 00000000..17fa5c86 --- /dev/null +++ b/src/Runtime/Source/system/Qt3DSMemory.cpp @@ -0,0 +1,137 @@ +/**************************************************************************** +** +** Copyright (C) 1993-2009 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) any later version +** approved by the KDE Free Qt Foundation. The licenses are as published by +** the Free Software Foundation and appearing in the file LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "SystemPrefix.h" + +//============================================================================== +// Includes +//============================================================================== +#include "Qt3DSMemory.h" + +//============================================================================== +// OS level memory routines +//============================================================================== +Q3DStudio::CMemory::TMalloc Q3DStudio::CMemory::s_Malloc = NULL; +Q3DStudio::CMemory::TRealloc Q3DStudio::CMemory::s_Realloc = NULL; +Q3DStudio::CMemory::TFree Q3DStudio::CMemory::s_Free = NULL; + +//============================================================================== +/** + * Overrides basic memory allocation/deallocation routines + * @param inMalloc memory allocation routine + * @param inFree memory deallocation routine + * @param inRealloc memory reallocation routine + */ +void Q3DStudio::CMemory::SetMemoryFunctions(const TMalloc inMalloc, const TFree inFree, + const TRealloc inRealloc) +{ + s_Malloc = inMalloc; + s_Realloc = inRealloc; + s_Free = inFree; +} + +static Q3DStudio::CMemoryManager *s_globalManager = nullptr; +static Q3DStudio::CMemoryHeap *s_globalHeap = nullptr; + +//============================================================================== +/** + * Boot up the pooled memory manager and return it. + * @note The manager has to be initialized before use: + * GetMemoryManager( ).Initialize( "GlobalManager", g_ChunkSize, g_ChunkCount ); + * @return Q3DStudio::CMemoryManager reference to the global object + */ +Q3DStudio::CMemoryManager &GetMemoryManager() +{ + if (!s_globalManager) + s_globalManager = new Q3DStudio::CMemoryManager; + return *s_globalManager; +} + +//============================================================================== +/** + * Return a reference to the global heap object. + * @return Q3DStudio::CMemoryHeap reference to the global object + */ +Q3DStudio::CMemoryHeap &GetMemoryHeap() +{ + if (!s_globalHeap) + s_globalHeap = new Q3DStudio::CMemoryHeap; + return *s_globalHeap; +} + +//============================================================================== +// Q3DStudio_new operator prototypes (5 args) +//============================================================================== +void *operator new(size_t inReportedSize, size_t inOfficialSize, const char *inType, + const char *inFile, int inLine) +{ + Q3DStudio_UNREFERENCED_PARAMETER(inReportedSize); + Q3DStudio_ASSERT(inReportedSize == inOfficialSize); + + return Q3DStudio_HANDLER_NEW.Allocate(static_cast<const Q3DStudio::INT32>(inOfficialSize), + inType, inFile, inLine); +} + +//============================================================================== +/** + * Override 'operator delete' in order to track memory usage. + * + * So what's the use of the overloaded delete with special arguments? There is + * actually one case in which it will be called--when an exception is thrown + * during object construction. As you might recall, there is a contract implicit + * in the language that if an exception happens during the construction of an object, + * the memory for this object will be automatically deallocated. It so happens + * that during object's construction the compiler is still aware of which version + * of operator new was called to allocate memory. It is therefore able to generate + * a call to the corresponding version of delete, in case an exception is thrown. + * After the successful completion of construction, this information is no longer + * available and the compiler has no means to guess which version of global delete + * is appropriate for a given object. + */ +void operator delete(void *inReportedAddress, size_t inOfficialSize, const char *, const char *, + int) +{ + Q3DStudio_HANDLER_NEW.Free(inReportedAddress, + static_cast<const Q3DStudio::INT32>(inOfficialSize)); +} + +//============================================================================== +// Q3DStudio_virtual_new operators (4 args) +//============================================================================== +void *operator new(size_t inReportedSize, const char *inType, const char *inFile, int inLine) +{ + return Q3DStudio::CMemoryFilter::Allocate(static_cast<Q3DStudio::INT32>(inReportedSize), inType, + inFile, inLine, false); +} + +void operator delete(void *inReportedAddress, const char *, const char *, int) +{ + Q3DStudio::CMemoryFilter::Free(inReportedAddress); +} |